Hair treatment composition, kit and method thereof

ABSTRACT

A hair treatment composition, particularly a hair colouring and/or bleaching composition, comprising an oxidizing agent, an alkalizing agent selected from the group consisting of ammonia, its salts and mixtures thereof, one or more fatty alcohol(s), one or more non-ionic surfactant(s) and a specific fatty compound. It is also provided a kit, method and use thereof. Superior hair treatment performance, particularly superior colouring and bleaching performance, with a reduced or an eliminated smell of said alkalizing agent upon application, is achieved.

FIELD OF THE INVENTION

The present invention relates to a hair treatment composition,particularly a hair colouring and/or bleaching composition, comprisingone or more oxidizing agent(s), one or more alkalizing agent(s) selectedfrom the group consisting of ammonia, its salts and mixtures thereof,one or more fatty alcohol(s), one or more non-ionic surfactant(s)different from fatty alcohol(s) and a specific fatty compound. It alsorelates to kit and method thereof. The present invention providessuperior hair treatment performance, particularly superior colouring andbleaching performance, with a reduced or an eliminated smell of saidalkalizing agent upon application.

BACKGROUND OF THE INVENTION

The permanent alteration of the colour of keratinous fibers, inparticular human hair, by the application of hair dyes is well known. Inorder to provide the consumer with the hair colour and the intensity ofthe colour desired, very complex chemical processes are utilized.Permanent hair colouring formulations typically comprise oxidative hairdye precursors, which can diffuse into the hair through the cuticle andinto the cortex where they can then react with each other and suitableoxidizing agents to form the end dye molecule. Due to the larger size ofthese resultant molecules they are unable to readily diffuse out of thehair during subsequent washing with water and/or detergent; hencedelivering a consumer-desired permanency of colour. This reactiontypically takes place at pH from about 8.5 to about 10.5 (approximatelypH 10) in the presence of an alkalizing agent and an oxidizing agent.

Despite the fact that commercial hair colouring products have beenavailable for many years, the products still exhibit a number ofconsumer-related deficiencies.

Typically, permanent hair dye products will contain an alkali, typicallya source of ammonia. This serves the purpose of swelling the hairallowing the entry of the dye precursor molecules into the hair and alsoimproves the lightening effect of the oxidizing agent, which istypically hydrogen peroxide Ammonia shows the best hair colouring and/orbleaching performance as well as hair damage profile, versus alternativealkalizing agents. However, ammonia is also volatile and its associatedodour is extremely unpleasant to the consumers of such products,particularly as these hair colouring and/or bleaching products are usedin close proximity to the nasal region. Hence, it would be highlydesirable to provide an oxidative hair colouring and/or bleachingcomposition, and kit thereof, which delivers the consumer's requiredlightening level and colour but which has reduced or eliminated thedetectable ammonia odour.

A number of attempts have been described in the literature to addressthe above identified improvement areas. For example, it has beendescribed hair colouring and/or bleaching compositions comprisingcarbonate and/or carbamate compounds. It has also been described haircolouring and/or bleaching compositions comprising an alkalizing agent,alternative to ammonia and its salts, such as monoethanolamine. It hasalso been described compounds blocking and/or antagonizing the odour ofammonia. However these previous attempts have not proven fullysatisfactory vis-à-vis further criteria, as they may exhibit a limitedhair colouring and/or bleaching performance including limited colourdelivery, uptake and/or durability; significant damages to the hairincluding brittle fibre formation.

There is the need thereof for providing a composition comprising ammoniaand/or its salts thereof, which releases a reduced or no odour,especially upon application onto hair. There is also the need forproviding a composition comprising ammonia and/or its salts thereof,which releases a reduced or no odour, while providing superior hairtreatment performance. There is also the need for providing acomposition comprising ammonia and/or its salts thereof, releasing areduced or no odour, without imparting significant damages onto the hairfibers.

Particularly, there is the need thereof for providing a compositionreleasing a reduced or no ammonia odour, upon application onto hair.There is also the need for providing a composition releasing a reducedor no ammonia odour, while providing superior hair colouring andbleaching performance. There is also the need for providing acomposition releasing a reduced or no ammonia odour, without impartingsignificant damages onto the hair fibers.

SUMMARY OF THE INVENTION

In one aspect, the present invention relates to a hair colouring and/orbleaching composition comprising a first aqueous component and a secondaqueous component, mixed prior to application onto hair. The firstaqueous component comprises, in a cosmetically acceptable carrier one ormore oxidizing agent(s); optionally one or more fatty alcohol(s) andoptionally or more non-ionic surfactant(s) other than fatty alcohol(s).The second aqueous component comprises, in a cosmetically acceptablecarrier one or more alkalizing agent(s) selected from the groupconsisting of ammonia, its salts and mixtures thereof; one or more fattyalcohol(s); one or more non-ionic surfactant(s) other than fattyalcohol(s). The ratio between the total amount of fatty alcohol(s) andthe total amount of non-ionic surfactant(s) other than fatty alcohol(s)comprised in the second aqueous component ranges from 10:0.1 to 10:3.7.At least one of said components comprises one or more fatty compound(s)selected from the group consisting of a mineral oil, hydrocarbon oil,and mixtures thereof. The fatty compound(s) is present in an amount offrom 1% to 20%, by total weight of the composition.

In another aspect, the present invention relates to a hair colouringand/or bleaching kit. In another aspect, the present invention relatesto a method for colouring and/or bleaching hair.

DETAILED DESCRIPTION OF THE INVENTION

As used herein the term “hair” to be treated may be “living” i.e. on aliving body or may be “non-living” i.e. in a wig, hairpiece or otheraggregation of non-living keratinous fibers. Mammalian, preferably humanhair is preferred. However wool, fur and other keratin containing fibersare suitable substrates for the compositions according to the presentinvention.

By “hair colouring” composition, it is meant a composition suitable forchanging the colour of hair. The hair colouring composition is referredhereinafter as “the composition”, unless otherwise specified. The haircolouring composition may comprise oxidative dye precursors, direct dyesor even no, or substantially no, dyes in case of bleaching onlycompositions where the change of colour is mainly caused by thedegradation of the natural melanin contained in the hair shaft by theoxidizing agent. The term “hair colouring” composition as used hereincovers hair bleaching and hair oxidative dyeing products.

By “fatty alcohol” it is meant a non-alkoxylated, saturated orunsaturated, linear or branched alcohol having from 14 to 30 carbonatoms.

All percentages are by weight of the hair colouring composition, i.e. ofthe ready-to-use composition which is the composition to be applied onhair, unless otherwise specified. When more than one composition areused during a treatment, the total weight to be considered is the totalweight of all the compositions applied on the hair simultaneously (i.e.the weight found “on head”), typically resulting from mixing anoxidative composition (also called developer and/or oxidizingcomposition/component) with a dye composition (also called tint, and/ordye composition/component), unless otherwise specified. All ratios orpercentages are weight ratios or weight percentages unless specificallystated otherwise.

The present invention relates to a hair colouring and/or bleachingcomposition comprising a first aqueous component and a second aqueouscomponent, said first and second aqueous components being mixed prior toapplication onto hair. The first aqueous component, also calleddeveloper component or oxidizing component, comprises, in a cosmeticallyacceptable carrier, one or more oxidizing agent(s) and optionally one ormore fatty alcohol(s) and optionally one or more non-ionic surfactant(s)other than fatty alcohol(s). The second aqueous component, also calledtint component or dye component, comprises, in a cosmetically acceptablecarrier, one or more alkalizing agent(s) selected from the groupconsisting of ammonia, its salts and mixtures thereof and one or morefatty alcohol(s) and one or more non-ionic surfactant(s) other thanfatty alcohol(s).

At least one of the first and the second components, alternatively thefirst or the second component, alternatively the first and the secondcomponents, comprise one or more fatty compound(s) selected from thegroup consisting of a mineral oil, hydrocarbon oil, and mixturesthereof, wherein said fatty compound(s) is present in a total amountranging from 1% to 20%, by total weight of the composition.

The ratio between the total amount of fatty alcohol(s) and the totalamount of non-ionic surfactant(s) other fatty alcohol(s) comprised inthe second aqueous component ranges from 10:0.1 to 10:3.7, alternativelyfrom 10:0.5 to 10:3, alternatively from 10:1 to 10:3, alternatively from10:1 to 10:2.

The ratio between the total amount of fatty alcohol(s) and the totalamount of non-ionic surfactant(s) other than fatty alcohol(s) comprisedin the composition may range from 10:0.1 to 10:4.2, alternatively from10:0.1 to 10:4.1, alternatively from 10:0.1 to 10:4, alternatively from10:0.5 to 10:3.5, alternatively from 10:1 to 10:2.

The first and the second components may be mixed prior to application tohair in a ratio ranging from 5:1 to 1:5, alternatively from 3:1 to 1:3,alternatively from 2:1 to 1:2, alternatively in a ratio of 1:1.

The composition according to the present invention comprises one or moreoxidizing agent(s).

Any oxidizing agent known in the art may be used. Preferred oxidizingagent(s) are water-soluble peroxygen oxidizing agent(s). As used herein,“water-soluble” means that in standard conditions at least 0.1 g,preferably 1 g, more preferably 10 g of the oxidizing agent can bedissolved in 1 liter of deionized water at 25° C. The oxidizing agent(s)are valuable for the initial solubilisation and decolorisation of themelanin (bleaching) and accelerate the oxidation of the oxidative dyeprecursors (oxidative dyeing) in the hair shaft.

Suitable water-soluble oxidizing agent(s) include, but are not limitedto: inorganic peroxygen materials capable of yielding hydrogen peroxidein an aqueous solution. Suitable water-soluble peroxygen oxidizingagents include, but are not limited to: hydrogen peroxide; inorganicalkali metal peroxides (such as sodium periodate and sodium peroxide);organic peroxides (such as urea peroxide and melamine peroxide);inorganic perhydrate salt bleaching compounds (such as the alkali metalsalts of perborates, percarbonates, perphosphates, persilicates,persulphates and the like); and mixtures thereof. Inorganic perhydratesalts may be incorporated for example as monohydrates, tetrahydrates.Alkyl/aryl peroxides and/or peroxidases may also be used. Mixtures oftwo or more such oxidizing agents can be used if desired. The oxidizingagent(s) may be provided in aqueous solution or as a powder which isdissolved prior to use.

In a specific embodiment, the composition comprises water-solubleoxidizing agent(s) selected from the group consisting of hydrogenperoxide, percarbonates (which may be used to provide a source of bothoxidizing agent and carbonate ions and or ammonium ions), persulphates,and mixtures thereof; alternatively a water-soluble oxidizing agentbeing hydrogen peroxide.

The composition may comprise a total amount of oxidizing agent(s)ranging from 0.1% to 10%, alternatively from 1% to 7%, alternativelyfrom 2% to 5%, by total weight of the composition. The amount of eachparticular oxidizing agent or mixtures thereof described hereinbeforecan account for up to 100% (or 100%) of the total amount of oxidizingagent(s) in the composition.

The composition comprises one or more an alkalizing agent(s), whereinthe alkalizing agent(s) is selected from the group consisting ofammonia, its salts and mixtures thereof; alternatively from the groupconsisting of ammonia, ammonium halides, ammonium sulfate, ammoniumphosphate, ammonium lactate, ammonium glycinate, ammonium aspartate,ammonium nitrate, ammonium perchlorate, ammonium carbonate, ammoniumhydrogen carbonate, ammonium silicate, ammonium borate, and mixturesthereof; alternatively from the group consisting of ammonia, ammoniumcarbonate, and mixtures thereof; alternatively wherein the alkalizingagent is ammonia; alternatively wherein the alkalizing agent is ammoniumcarbonate. If present, the ammonium ions and the carbonate ions arepresent in the composition at a weight ratio of from 3:1 to 1:10,alternatively from 2:1 to 1:5.

The composition may comprise a total amount of alkalizing agent(s)ranging from 0.1% to 10%, alternatively from 0.5% to 6%, alternativelyfrom 1% to 4%, by total weight of the composition. The amount of eachparticular alkalizing agent or mixtures thereof described hereinbeforecan account for up to 100% (or 100%) of the total amount of alkalizingagent(s) in the composition.

The composition comprises one or more fatty alcohol(s). The fattyalcohol(s) may be selected from the group consisting of linear and/orbranched C14 to C30 fatty alcohols; alternatively from the groupconsisting of C14 to C30 fatty alcohols; alternatively from the groupconsisting of cetyl alcohol, stearyl alcohol, cetearyl alcohol, behenylalcohol, any mixtures thereof.

The composition may comprise a total amount of fatty alcohol(s) rangingfrom 0.5% to 20%, alternatively from 2% to 10%, alternatively from 4% to8%, by total weight of the composition. The amount of each particularfatty alcohol or mixtures thereof described hereinbefore can account forup to 100% (or 100%) of the total amount of fatty alcohol(s) in thecomposition.

The composition comprises one or more non-ionic surfactant(s) other thanfatty alcohol(s). The non-ionic surfactant(s) may be selected fromnon-ionic surfactant(s) comprising one or more polyethyleneoxide chainincluding the following compounds: polyoxyethylene alkyl ethers,polyethyleneglycol fatty acid esters, polyoxyethylene castor oil,polyoxyethylene hydrogenated castor oil, polyoxyethylene fatty amidesand their monoethanolamine and diethanolamine derivatives andpolyethoxylated fatty amines, and mixtures thereof.

The non-ionic surfactant(s) may be selected from the group consisting ofpolyoxyethylene C8 to C30 alkyl ethers; alternatively from the groupconsisting of polyoxyethylene C8 to C30 alkyl ethers having at least 5ethylene oxide units, or at least 10 ethylene oxide units, or at least20 ethylene oxide units; alternatively from the group consisting ofpolyoxyethylene C8 to C30 alkyl ethers having from 10 to 200 ethyleneoxide units; alternatively from the group consisting of polyoxyethyleneC8 to C30 alkyl ethers having from 20 to 200 ethylene oxide units;alternatively from the group consisting of ceteareth-25, steareth-20,steareth-100, steareth-150, steareth-200, and mixtures thereof.

Alternatively, the non-ionic surfactant(s) may be free ofpolyethyleneoxide chains. Representative examples of non-ionicsurfactants free of polyethyleneoxide chains include polyglycerolatedfatty acids, polyglycerolated fatty amides, polyglycerolated alkylphenols, polyglycerolated[alpha]-diols, polyglycerolated alcohols, alkylpolyglucosides, sugar esters and mixtures thereof.

The composition may comprise a total amount of non-ionic surfactant(s)other than fatty alcohol(s) ranging from 0.2% to 5%, alternatively from0.5% to 3%, alternatively from 0.7% to 1.5% by total weight of thecomposition. The amount of each particular non-ionic surfactant ormixtures thereof described hereinbefore can account for up to 100% (or100%) of the total amount of non-ionic surfactant(s) in the composition.

The composition may comprise a total amount of fatty alcohol(s) andnon-ionic surfactant(s) ranging from 1% to 30%, alternatively from 1.5%to 15% by total weight of the composition.

The composition may comprise one or more phosphate ester compound(s)selected from the group consisting of alkyl phosphate esters,alkoxylated alkyl phosphate esters, and mixtures thereof. The phosphateester compound may be selected from the group consisting of C14 to C30alkyl phosphate esters, alkoxylated C14 to C30 alkyl phosphate esters,and mixtures thereof; alternatively from the group consisting of C14 toC18 alkyl phosphate esters, alkoxylated C14 to C18 alkyl phosphateesters, and mixtures thereof; alternatively from the group consisting ofoleth-3 phosphate, oleth-5 phosphate, oleth-10 phosphate, cetoleth-5phosphate, cetoleth-10 phosphate, trideceth-5 phosphate, trideceth-6phosphate, trideceth-10 phosphate, cetyl phosphate, dicetyl phosphate,oleyl phosphate, dioleyl phosphate, stearyl phosphate, C9-15 alkylphosphate, ceteareth-2 phosphate, ceteareth-20 phosphate, ceteth-10phosphate, deceth-4 phosphate, glycereth-26 phosphate, PPG-5-ceteth-10phosphate, steareth-2 phosphate, DEA-oleth-3 phosphate, DEA-oleth-3phosphate, PEG-5 ethylhexyl ether phosphate, and mixtures thereof;alternatively from the group consisting of PPG-5-ceteth-10 phosphate,oleth-3 phosphate, oleth-10 phosphate, ceteth-10 phosphate, dicetylphosphate, cetyl phosphate, stearyl phosphate, ceteareth-2 phosphate,and mixtures thereof; alternatively from the group consisting ofceteth-10 phosphate, dicetyl phosphate, ceteareth-2 phosphate, andmixtures thereof. Commercially suitable raw materials include materialsof the Crodafos™ Series from Croda, particularly Crodafos™ CES,Crodafos™ CS2A. Crodafos™ CES comprises cetearyl alcohol, dicetylphosphate, ceteth-10 phosphate. Crodafos™ CS2A comprisesceteareth-2-phosphate. The composition may comprise a total amount ofthe phosphate ester compound(s) of less than 1%, alternatively less than0.5%, alternatively less than 0.3%, alternatively less than 0.1% bytotal weight of the composition. The amount of each particular phosphateester compound or mixtures thereof described hereinbefore can accountfor up to 100% (or 100%) of the total amount of phosphate ester compoundin the composition.

In a preferred embodiment, the composition is free of the phosphateester compound(s). While not wishing to be bound by theory, it isbelieved that not having phosphate ester compounds in the compositionhelps to improve the compatibility with hair conditioning agents,especially cationic hair conditioning agents which may be present in thecomposition. The composition may also be free of any phosphate estercompound other than the phosphate ester compound(s) selected from thegroup consisting of alkyl phosphate esters, alkoxylated alkyl phosphateesters, and mixtures thereof.

The fatty alcohol(s), the non-ionic surfactant(s) and the optionalphosphate ester compound(s) may be comprised in the composition, in partor all, in a gel network system. The fatty alcohol(s), the non-ionicsurfactant(s) and the optional phosphate ester compound(s) may becomprised in the first and/or the second aqueous component(s), in partor all, in a gel network system.

The formation of the gel network involves heating a dispersion of thefatty alcohol(s) in water with the surfactant(s) to a temperature above80° C. During the mixing process, the fatty alcohol(s) melts, allowingthe surfactant(s) to partition into the fatty alcohol(s) droplets. Thesurfactant(s) brings water along with it into the fatty alcohol(s). Thischanges the isotropic fatty alcohol(s) drops into liquid crystallinephase drops. When the mixture is cooled below the chain melt temperaturethe liquid crystal phase is converted into a solid crystalline gelnetwork. The gel network may contribute in reducing, or eveneliminating, the ammonia odour, when combined with the specific fattycompound(s) described herein after.

From 50% to 100%, alternatively from 70% to 100%, alternatively from 90%to 100%, alternatively substantially 100% of the fatty alcohol(s)present in the composition may be comprised within the gel network. From50% to 100%, alternatively from 70% to 100%, alternatively from 90% to100%, alternatively substantially 100% of the non-ionic surfactant(s)present in the composition may be comprised within the gel network. From50% to 100%, alternatively from 70% to 100%, alternatively from 90% to100%, alternatively substantially 100% of the optional phosphate estercompound(s) present in the composition may be comprised within the gelnetwork.

The composition comprises a total amount of fatty compound(s) selectedfrom the group consisting of a mineral oil, hydrocarbon oil, andmixtures thereof ranging from 1% to 20%, alternatively from 3% to 20%,alternatively from 5% to 20%, alternatively from 7% to 18%,alternatively from 8% to 15%, by total weight of the composition.Commercially suitable raw materials include materials of the Marcol™Series from ExxonMobile, particularly Marcol™ 52 and Marcol™ 82. Theamount of each particular fatty compound or mixtures thereof describedhereinbefore can account for up to 100% (or 100%) of the total amount offatty compound(s) in the composition.

The inventors have surprisingly found that the ammonia odour, which isparticularly noticeable during application and leave of the haircolouring and/or bleaching composition onto hair, can be significantlyreduced, or even eliminated, by carefully selecting and using incombination specific classes of compounds. Indeed, the inventors havefound that the reduction or elimination of smell is achieved when aspecific fatty compound present in an amount from 1% to 20% by weight ofthe total composition and selected from the group consisting of amineral oil, hydrocarbon oil, and mixtures thereof is used incombination with fatty alcohol(s) and non-ionic surfactant(s), whereinthe fatty alcohol(s) and the non-ionic surfactant(s) are comprised inthe second aqueous component (also called tint component or dyecomponent) at a specific ratio. It has also been found that such benefitcould be achieved when the fatty compound is present in a minimumamount, i.e. from 1% by total weight of the composition. It has alsobeen found that the colouring and/or bleaching performance—includingcolour delivery, uptake and durability—was not impaired, and that thecomposition does not damage hair fibers further versus conventionalammonia-containing compositions.

The composition comprises a cosmetically acceptable carrier or solvent.The solvent may be selected from water, or a mixture of water and atleast one organic solvent to dissolve the compounds that would nottypically be sufficiently soluble in water.

Suitable organic solvents include, but are not limited to: C1 to C4lower alkanols (such as ethanol, propanol, isopropanol); aromaticalcohols (such as benzyl alcohol and phenoxyethanol); polyols and polyolethers (such as carbitols, 2-butoxyethanol, propylene glycol, propyleneglycol monomethyl ether, diethylene glycol monoethyl ether, monomethylether, hexylene glycol, glycerol, ethoxy glycol, butoxydiglycol,ethoxydiglycerol, dipropyleneglycol, polyglycerol); propylene carbonate;and mixtures thereof.

The solvent may be selected from the group consisting of water, ethanol,propanol, isopropanol, glycerol, 1,2-propylene glycol, hexylene glycol,ethoxy diglycol, and mixtures thereof. The composition may comprisewater as a main ingredient, particularly in a total amount ranging fromat least 50%, alternatively from at least 60%, alternatively from atleast 70%, by total weight of the composition. Typically, when present,the composition comprises a total amount of organic solvents rangingfrom 1% to 30%, by total weight of the composition.

The composition may further comprise oxidative dye precursors, which areusually classified either as primary intermediates (also known asdevelopers) or couplers (also known as secondary intermediates). Variouscouplers may be used with primary intermediates in order to obtaindifferent shades. Oxidative dye precursors may be free bases or thecosmetically acceptable salts thereof.

Typically, the composition may comprise a total amount of oxidative dyeprecursors ranging up to 12%, alternatively from 0.1% to 10%,alternatively from 0.3% to 8%, alternatively from 0.5% to 6%, by totalweight of the composition.

Suitable primary intermediates include, but are not limited to:toluene-2,5-diamine, p-phenylenediamine, N-phenyl-p-phenylenediamine,N,N-bis(2-hydroxyethyl)-p-phenylenediamine,2-hydroxyethyl-p-phenylenediamine,hydroxypropyl-bis-(N-hydroxyethyl-p-phenylenediamine),2-methoxymethyl-p-phenylenediamine,2-(1,2-dihydroxyethyl)-p-phenylenediamine,2,2′-(2-(4-aminophenylamino)ethylazanediyl)diethanol,2-(2,5-diamino-4-methoxyphenyl)propane-1,3-diol,2-(7-amino-2H-benzo[b][1,4]oxazin-4(3H)-yl)ethanol,2-chloro-p-phenylenediamine, p-aminophenol, p-(methylamino)phenol,4-amino-m-cresol, 6-amino-m-cresol, 5-ethyl-o-aminophenol,2-methoxy-p-phenylenediamine, 2,2′-methylenebis-4-aminophenol,2,4,5,6-tetraminopyrimidine, 2,5,6-triamino-4-pyrimidinol,1-hydroxyethyl-4,5-diaminopyrazole sulfate,4,5-diamino-1-methylpyrazole, 4,5-diamino-1-ethylpyrazole,4,5-diamino-1-isopropylpyrazole, 4,5-diamino-1-butylpyrazole,4,5-diamino-1-pentylpyrazole, 4,5-diamino-1-benzylpyrazole,2,3-diamino-6,7-dihydropyrazolo[1,2-a]pyrazol-1(5H)-onedimethosulfonate, 4,5-diamino-1-hexylpyrazole,4,5-diamino-1-heptylpyrazole, methoxymethyl-1,4-diaminobenzene,N,N-bis(2-hydroxyethyl)-N-(4-aminophenyl)-1,2-diaminothane, saltsthereof and mixtures thereof.

Suitable couplers include, but are not limited to: resorcinol,4-chlororesorcinol, 2-chlororesorcinol, 2-methylresorcinol,4,6-dichlorobenzene-1,3-diol, 2,4-dimethylbenzene-1,3-diol,m-aminophenol, 4-amino-2-hydroxytoluene,2-methyl-5-hydroxyethylaminophenol, 3-amino-2,6-dimethylphenol,3-amino-2,4-dichlorophenol, 5-amino-6-chloro-o-cresol,5-amino-4-chloro-o-cresol, 6-hydroxybenzomorpholine,2-amino-5-ethylphenol, 2-amino-5-phenylphenol, 2-amino-5-methylphenol,2-amino-6-methylphenol, 2-amino-5-ethoxyphenol,5-methyl-2-(methylamino)phenol, 2,4-diaminophenoxyethanol,2-amino-4-hydroxyethylaminoanisole,1,3-bis-(2,4-diaminophenoxy)-propane,2,2′-(2-methyl-1,3-phenylene)bis(azanediyl)diethanol,benzene-1,3-diamine, 2,2′-(4,6-diamino-1,3-phenylene)bis(oxy)diethanol,3-(pyrrolidin-1-yl)aniline, 1-(3-(dimethylamino)phenyl)urea,1-(3-aminophenyl)urea, 1-naphthol, 2-methyl-1-naphthol,1,5-naphthalenediol, 2,7-naphthalenediol or1-acetoxy-2-methylnaphthalene, 4-chloro-2-methylnaphthalen-1-ol,4-methoxy-2-methylnaphthalen-1-ol, 2,6-dihydroxy-3,4-dimethylpyridine,2,6-dimethoxy-3,5-pyridinediamine,3-amino-2-methylamino-6-methoxypyridine, 2-amino-3-hydroxypyridine,2,6-diaminopyridine, pyridine-2,6-diol, 5,6-dihydroxyindole,6-hydroxyindole, 5,6-dihydroxyindoline,3-methyl-1-phenyl-1H-pyrazol-5(4H)-one, 1,2,4-trihydroxybenzene,2-(benzo[d][1,3]dioxol-5-ylamino)ethanol (also known ashydroxyethyl-3,4-methylenedioxyaniline), and mixtures thereof.

The composition may further comprise compatible direct dyes, in anamount sufficient to provide additional coloring, particularly withregard to intensity. Typically, the composition may comprise a totalamount of direct dyes ranging from 0.05% to 4%, by total weight of thecomposition.

Suitable direct dyes include but are not limited to: Acid dyes such asAcid Yellow 1, Acid Orange 3, Acid Black 1, Acid Black 52, Acid Orange7, Acid Red 33, Acid Yellow 23, Acid Blue 9, Acid Violet 43, HC Blue 16,Acid Blue 62, Acid Blue 25, Acid Red 4; Basic Dyes such as Basic Brown17, Basic Red 118, Basic Orange 69, Basic Red 76, Basic Brown 16, BasicYellow 57, Basic Violet 14, Basic Blue 7, Basic Blue 26, Basic Red 2,Basic Blue 99, Basic Yellow 29, Basic Red 51, Basic Orange 31, BasicYellow 87,4-(3-(4-amino-9,10-dioxo-9,10-dihydroanthracen-1-ylamino)propyl)-4-methylmorpholin-4-ium-methylsulfate,(E)-1-(2-(4-(4,5-dimethylthiazol-2-yl)diazenyl)phenyl)(ethyl)amino)ethyl)-3-methyl-1H-imidazol-3-iumchloride,(E)-4-(2-(4-(dimethylamino)phenyl)diazenyl)-1-methyl-1H-imidazol-3-ium-3-yl)butane-1-sulfonate,(E)-4-(4-(2-methyl-2-phenylhydrazono)methyl)pyridinium-1-yl)butane-1-sulfonate,N,N-dimethyl-3-(4-(methylamino)-9,10-dioxo-4a,9,9a,10-tetrahydroanthracen-1-ylamino)-N-propylpropan-1-aminiumbromide; Disperse Dyes such as Disperse Red 17, Disperse Violet 1,Disperse Red 15, Disperse Black 9, Disperse Blue 3, Disperse Blue 23,Disperse Blue 377; Nitro Dyes such as1-(2-(4-nitrophenylamino)ethyl)urea,2-(4-methyl-2-nitrophenylamino)ethanol, 4-nitrobenzene-1,2-diamine,2-nitrobenzene-1,4-diamine, Picramic acid, HC Red No. 13,2,2′-(2-nitro-1,4-phenylene)bis(azanediyl)diethanol, HC Yellow No. 5, HCRed No. 7, HC Blue No. 2, HC Yellow No. 4, HC Yellow No. 2, HC OrangeNo. 1, HC Red No. 1, 2-(4-amino-2-chloro-5-nitrophenylamino)ethanol, HCRed No. 3,4-amino-3-nitrophenol, 4-(2-hydroxyethylamino)-3-nitrophenol,2-amino-3-nitrophenol, 2-(3-(methylamino)-4-nitrophenoxy)ethanol,3-(3-amino-4-nitrophenyl)propane-1,2-diol, HC Yellow No. 11, HC VioletNo. 1, HC Orange No. 2, HC Orange No. 3, HC Yellow No. 9, HC Red No. 10,HC Red No. 11, 2-(2-hydroxyethylamino)-4,6-dinitrophenol, HC Blue No.12, HC Yellow No. 6, HC Yellow No. 12, HC Blue No. 10, HC Yellow No. 7,HC Yellow No. 10, HC Blue No. 9, 2-chloro-6-(ethylamino)-4-nitrophenol,6-nitropyridine-2,5-diamine, HC Violet No. 2,2-amino-6-chloro-4-nitrophenol, 4-(3-hydroxypropylamino)-3-nitrophenol,HC Yellow No. 13, 6-nitro-1,2,3,4-tetrahydroquinoxaline, HC Red No. 14,HC Yellow No. 15, HC Yellow No. 14,N2-methyl-6-nitropyridine-2,5-diamine,N1-allyl-2-nitrobenzene-1,4-diamine, HC Red No. 8, HC Green No. 1, HCBlue No. 14; Natural dyes such as Annato, Anthocyanin, Beetroot,Carotene, Capsanthin, Lycopene, Chlorophyll, Henna, Indigo, Cochineal;and mixtures thereof.

The composition may further comprise one or more chelant(s) (also knownas “chelating agent”, “sequestering agent”, or “sequestrant”) in anamount sufficient to reduce the amount of metals available to interactwith formulation components, particularly oxidizing agents, moreparticularly peroxides. Any suitable chelant known in the art may beused.

The composition may comprise a total amount of chelant(s) ranging fromat least 0.01%, alternatively from 0.01% to 5%, alternatively from 0.25%to 3%, alternatively from 0.5% to 1%, by total weight of thecomposition.

Suitable chelant(s) include, but are not limited to: carboxylic acids(such as aminocarboxylic acids), phosphonic acids (such asaminophosphonic acids), polyphosphoric acids (such as linearpolyphosphoric acids), their salts thereof, and mixtures thereof. By“salts thereof”, it is meant—in the context of chelants—all saltscomprising the same functional structure as the chelant they arereferring to and including alkali metal salts, alkaline earth salts,ammonium salts, substituted ammonium salts, and mixtures thereof;alternatively sodium salts, potassium salts, ammonium salts, andmixtures thereof; alternatively monoethanolammonium salts,diethanolammonium salts, triethanolammonium salts, and mixtures thereof.

The composition may comprise chelant(s) selected from the groupconsisting of diethylenetriamine-N,N′,N″-polyacids,diethylenetriaminepentaacetic acid (DTPA),diethylenetriaminepenta(methylene phosphonic acid) (DTPMP),diamine-N,N′-dipolyacid, monoamine monoamide-N,N′-dipolyacid,ethylenediaminedisuccinic acid (EDDS), their salts thereof, theirderivatives thereof, and mixtures thereof; alternativelyethylenediaminedisuccinic acid (EDDS).

The composition may further comprise one or more radical scavenger(s).As used herein the term “radical scavenger” refers to a species that canreact with a radical, preferably a carbonate radical to convert theradical species by a series of fast reactions to a less reactivespecies. In one embodiment, the radical scavenger(s) is different fromthe alkalising agent and/or is present in an amount sufficient to reducethe damage to the hair during the colouring/bleaching process.

The composition may comprise a total amount of radical scavenger(s)ranging from 0.1% to 10%, alternatively from 1% by weight to 7%, bytotal weight of the composition.

Suitable radical scavenger(s) includes, but are not limited to:alkanolamines, amino sugars, amino acids, esters of amino acids, andmixtures thereof; alternatively 3-amino-1-propanol, 4-amino-1-butanol,5-amino-1-pentanol, 1-amino-2-propanol, 1-amino-2-butanol,1-amino-2-pentanol, 1-amino-3-pentanol, 1-amino-4-pentanol,3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol,3-aminopropane-1,2-diol, glucosamine, N-acetylglucosamine, glycine,arginine, lysine, proline, glutamine, histidine, sarcosine, serine,glutamic acid, tryptophan, their salts thereof, and mixtures thereof;alternatively glycine, sarcosine, lysine, serine, 2 methoxyethylamine,glucosamine, glutamic acid, morpholine, piperidine, ethylamine, 3amino-1-propanol, and mixtures thereof. As used herein, the term “saltsthereof”—in the context of radical scavengers—means particularlypotassium salts, sodium salts, ammonium salts, and mixtures thereof.

The composition may further have a pH of from 3 to 13, alternativelyfrom 8 to 12, alternatively from 9 to 11. The composition may alsocomprise, in addition to the alkalizing agent(s) discussed above, a pHmodifier(s) and/or buffering agent(s) in an amount that is sufficientlyeffective to adjust the pH of the composition to fall within a rangefrom 3 to 13, alternatively from 8 to 12, alternatively from 9 to 11.

Suitable pH modifier(s) and/or buffering agent(s) include, but are notlimited to: ammonia; alkanolamides (such as monoethanolamine,diethanolamine, triethanolamine, monopropanolamine, dipropanolamine,tripropanolamine, tripropanolamine, 2-amino-2-methyl-1-propanol,2-amino-2-hydroxymethyl-1,3,-propandiol); guanidium salts; alkali metaland ammonium hydroxides and carbonates; and mixtures thereof.

Further pH modifier(s) and/or buffering agent(s) include, but are notlimited to: sodium hydroxide; ammonium carbonate; acidulents (such asinorganic and inorganic acids including for example phosphoric acid,acetic acid, ascorbic acid, citric acid or tartaric acid, hydrochloricacid); and mixtures thereof.

The composition may further comprise thickener(s) and/or rheologymodifier(s) in an amount sufficient to provide the composition with aviscosity so that it can be readily applied to the hair without undulydripping off the hair and causing mess.

The composition may comprise a total amount of thickener(s) ranging fromat least 0.1%, alternatively at least 0.5%, alternatively at least 1%,by total weight of the composition.

Suitable thickener(s) include, but are not limited to: associativepolymers, polysaccharides, non-associative polycarboxylic polymers, andmixtures thereof. Commercially available salt-tolerant thickenersinclude, but not limited to: xanthan, guar, hydroxypropyl guar,scleroglucan, methylcellulose, ethyl cellulose (commercially availableas Aquacote), hydroxyethyl cellulose (Natrosol), carboxymethylcellulose, hydroxypropylmethyl cellulose, microcrystalline cellulose,hydroxybutylmethyl cellulose, hydroxypropyl cellulose (Klucel),hydroxyethyl ethyl cellulose, cetyl hydroxyethyl cellulose (NatrosolPlus 330), N-vinylpyrollidone (Povidone), Acrylates/Ceteth-20 ItaconateCopolymer (Structure 3001), hydroxypropyl starch phosphate (StructureZEA), polyethoxylated urethanes or polycarbamyl polyglycol ester such asPEG-150/Decyl/SMDI copolymer (Aculyn 44), PEG-150/Stearyl/SMDI copolymer(Aculyn 46), trihydroxystearin (Thixcin), acrylates copolymer (Aculyn33) or hydrophobically modified acrylate copolymers (such asAcrylates/Steareth-20 Methacrylate Copolymer as Aculyn 22),acrylates/steareth-20 methacrylate crosspolymer (Aculyn 88),acrylates/vinyl neodecanoate crosspolymer (Aculyn 38),acrylates/beheneth-25 methacrylate copolymer (Aculyn 28),acrylates/C10-30 alkyl acrylate crosspolymer (Carbopol ETD 2020),non-ionic amphophilic polymers comprising at least one fatty chain andat least one hydrophilic unit selected from polyether urethanescomprising at least one fatty chain, blends of Ceteth—10 phosphate,Di-cetyl phosphate and Cetearyl alcohol (available as Crodafos CES), andmixtures thereof.

The composition may comprise a total amount of thickener(s) selectedfrom anionic and cationic polymer(s) of less than 1%, alternatively lessthan 0.1% by total weight of the composition.

The composition may further comprise a source of carbonate ions,carbamate ions, hydrogen carbonate ions, and mixtures thereof in asufficient amount to reduce damage to the hair during the coloringprocess.

The composition may comprise a total amount of a carbonate ion sourceranging from 0.1% to 15%, alternatively from 0.1% to 10%, alternativelyfrom 1% to 7%, by total weight of the composition.

Suitable carbonate ion sources include, but are not limited to: sodiumcarbonate, sodium hydrogen carbonate, potassium carbonate, potassiumhydrogen carbonate, guanidine carbonate, guanidine hydrogen carbonate,lithium carbonate, calcium carbonate, magnesium carbonate, bariumcarbonate, ammonium carbonate, ammonium hydrogen carbonate and mixturesthereof; alternatively sodium hydrogen carbonate, potassium hydrogencarbonate, and mixtures thereof; alternatively ammonium carbonate,ammonium hydrogen carbonate, and mixtures thereof.

The composition may further comprise one or more conditioning agent(s),and/or be used in combination with a composition comprising one or moreconditioning agent(s). Any suitable conditioning agent(s) known in theart may be used.

The composition may comprise a total amount of conditioning agent(s)ranging from 0.05% to 20%, alternatively from 0.1% to 15%, alternativelyfrom 0.2% to 10%, alternatively from 0.2% to 2%, alternatively from 0.5%to 2%, by total weight of the composition. The conditioning agent(s) maybe included in a separate pre- and/or post-treatment composition.

Suitable conditioning agent(s) include, but are not limited to:silicones, aminosilicones, fatty alcohols, polymeric resins, polyolcarboxylic acid esters, cationic polymers, cationic surfactants,insoluble oils and oil derived materials and mixtures thereof.Additional conditioning agent(s) include mineral oils and other oilssuch as glycerin and sorbitol. The composition may comprise a totalamount of cationic conditioning agent(s) of less than 1%, alternativelyless than 0.1% by total weight of the composition.

The composition may further comprise surfactant(s), other than thenon-ionic surfactant(s) and the phosphate ester compound(s). Suitablesurfactant(s) generally have a lipophilic chain length of from 8 to 30carbon atoms and can be selected from anionic surfactants other than thephosphate ester compounds, amphoteric surfactants, cationic surfactants,and mixtures thereof. Any suitable surfactant(s) known in the art may beused.

The composition may comprise a total amount of anionic surfactant(s)other than the phosphate ester compound(s) of less than 1%,alternatively less than 0.5%, alternatively less than 0.3%,alternatively less than 0.1% by total weight of the composition.Alternatively, the composition may be free of anionic surfactants otherthan the phosphate ester compound(s).

The composition may comprise a total amount of cationic surfactant(s) ofless than 1%, alternatively less than 0.5%, alternatively less than0.3%, alternatively less than 0.1% by total weight of the composition.Alternatively, the composition may be free of cationic surfactant(s).

The composition may be free of anionic surfactants, other than thephosphate ester compound(s), and free of cationic surfactant(s). Theinventors have surprisingly found that a greater reduction of ammoniaodour is achieved when the hair colouring and/or bleaching compositionis free of anionic and/or cationic surfactant(s). Indeed, it is believedthat incorporating anionic and/or cationic surfactant(s) into thecomposition may alter the gel network formation, the presence of saidgel network—together with the fatty compound(s) selected from the groupconsisting of mineral oil, hydrocarbon oil, and mixtures thereof—beingnecessary for achieving the ammonia odour reduction upon applicationonto hair.

The composition may comprise a total amount of surfactant(s) other thanfatty alcohol(s) and non-ionic surfactant(s) of less 1%, alternativelyless than 0.5%, alternatively less than 0.1% by total weight of thecomposition.

The composition may comprise, in addition to the ingredients indicatedabove, further ingredients in order to further enhance the properties ofthe composition, as long as these are not excluded by the claims.Suitable further ingredients include, but not limited to: solvents;peroxymonocarbonate ion sources; anionic, cationic, nonionic, amphotericor zwitterionic polymers, and mixtures thereof; fragrances; enzymes;dispersing agents; peroxide stabilizing agents; antioxidants; naturalingredients (such as proteins, protein compounds, and plant extracts);ceramides; preserving agents; opacifiers and pearling agents (such astitanium dioxide and mica); and mixtures thereof.

Suitable further ingredients referred to above, but not specificallydescribed below, are listed in the International Cosmetics IngredientDictionary and Handbook, (8th ed.; The Cosmetics, Toiletry, andFragrance Association). Particularly, vol. 2, sections 3 (ChemicalClasses) and 4 (Functions), which are useful in identifying specificadjuvants to achieve a particular purpose or multipurpose. A few ofthese ingredients are discussed hereinbelow, whose disclosure is ofcourse non-exhaustive.

The composition may be free of amine compounds and/or phospholipidcompounds; alternatively may be free of fatty monoamine compounds,polyamine compounds having at least three amino groups and fattyquaternary amine compounds and/or phospholipid compounds.

The composition may comprise a total amount of polymers selected fromanionic and cationic polymer(s) of less than 1%, alternatively less than0.1% by total weight of the composition. Alternatively, the compositionmay be free of anionic and cationic polymer(s).

The composition may also comprise a total amount of fatty compound otherthan fatty alcohols, mineral oil and hydrocarbon oil ranging from 0.5%to 20%, alternatively from 2% to 10%, alternatively from 4% to 8% bytotal weight of the composition. In an alternative embodiment, thecomposition is free of any fatty compound other than the fatty compoundselected from the group consisting of mineral oil, hydrocarbon oil,fatty alcohols, and mixtures thereof.

The composition may have viscosity of from 1000 to 60000 cPs,alternatively from 2000 to 30000 cPs, alternatively from 3000 to 25000cPs. Viscosity is measured using Brookfield viscometers with cone andplate attachment. For viscosities in the range of 0 to 12000 cPs, theBrookfield DV-11 viscometer with S42 plate is used. 2 ml sample of thecomposition is equilibrated at 26.7° C. for three minutes before thereadings are taken at 1 rpm. For viscosities in the range of 12,000 to60,000 cPs, the Brookfield DV-1 viscometer with S52 plate is used. 0.5ml sample of the composition is equilibrated for 1 minute at 26.7° C.before the readings are taken at 1 rpm.

The compositions may be provided in the form of foam which is applied tothe hair. Foam formation is typically achieved by the use of a foamingagent incorporated within the mixed composition (typically present ineither the oxidizing composition or the dye composition or both) incombination with a manually operated foaming device. Such manuallyoperated foaming devices are known in the art and include aerosolsdevices, squeeze foamers and pump foamers.

Suitable foaming agents includes surfactants such as anionic, nonionicand amphoteric surfactants, nonionic surfactants being preferred;polysaccharides (as described herein); polyvinyl pyrrolidone andcopolymers thereof; acrylic polymers such as Acrylates copolymer (Aculyn33) and Acrylates/Steareth-20 methacrylates (Aculyn 22); C12-C24 fattyacids such as stearates and mixtures thereof.

At least one of the first and the second component, alternatively thefirst or the second component, alternatively the first and the secondcomponents, may comprise the phosphate ester compound(s) selected fromthe group consisting of alkyl phosphate esters, alkoxylated alkylphosphate esters, and mixtures thereof.

The oxidizing agent(s), the alkalizing agent, the fatty alcohol(s), thenon-ionic surfactant(s), the fatty compound(s) and the cosmeticallyacceptable carrier, to be incorporated into the first and/or the secondcomponent, have been defined hereinbefore. Likewise, any suitableoptional compounds including the oxidative dye precursor(s), the directdye(s), the chelant(s), the radical scavenger(s), pH modifier(s) and/orbuffering agent(s), thickener(s) and/or rheology modifier(s), carbonateion source(s), conditioning agent(s), surfactant(s), and any furtheringredients, to be incorporated into the first and/or the secondcomposition, have also been defined hereinbefore.

The first and the second components may be mixed for 5 sec to 3 min,alternatively for 15 sec to 2 min, alternatively for 30 sec to 1 min.

Depending on stability and reactivity considerations, the compounds maybe incorporated indifferently into the first and/or the secondcomponents, or may preferably be incorporated into one of the twocomponents. Particularly, the phosphate ester compound(s) selected fromthe group consisting of alkyl phosphate esters, alkoxylated alkylphosphate esters, and mixtures thereof when present may be incorporatedinto the second component; the first component being free of saidphosphate ester compound(s). The fatty compound(s) selected from thegroup consisting of a mineral oil, hydrocarbon oil, and mixtures thereofmay be incorporated into the first component, the second component beingfree of said fatty compound. The fatty alcohol(s) and/or the non-ionicsurfactant(s) may be incorporated into the first component and/or thesecond component.

The oxidative dye precursors including the primary intermediates andcouplers are usually incorporated into the second component. The directdyes are usually incorporated into the second component. The chelant maybe incorporated into the first and/or the second component, however thechelant is usually incorporated into the first component for stabilityreason.

In another aspect, the present invention relates to a kit for colouringand/or bleaching hair comprising an individually packaged firstcomponent and an individually packaged second component. Individuallypackaged components mean that they may be packaged in separatecontainers or in compartmented containers. The consumer mixes the firstcomponent and the second component together immediately before use andapplies it onto the hair. The first and the second components may bemixed from 5 sec to 3 min, alternatively from 15 sec to 2 min,alternatively for 30 sec to 1 min prior application to the hair.

After working the combined mixture for a few minutes (to insure uniformapplication to all of the hair), the hair colouring and/or bleachingcomposition is allowed to remain on the hair for an amount sufficientfor the dyeing to take place, usually from 2 min to 60 min, typicallyfrom 30 min to 45 min. The consumer or salon professional then rinsesthe hair thoroughly with water and/or shampoo and allows it to dry. Itwill be observed that the hair has changed from its original colour tothe desired colour.

The kit may also comprise a third component selected from the groupconsisting of a conditioning composition, a pre-treatment composition,and/or a colour refresher composition. The pre-treatment may be appliedonto hair, before applying the hair colouring and/or bleachingcomposition. The conditioning composition, comprising a conditioningagent, may be mixed together with the first and the second componentprior to application onto hair, or may be alternatively appliedseparately onto hair, for example after applying the hair colouringand/or bleaching composition. The colour refresher composition,comprising optionally a pre-formed dye, may be applied after applyingthe hair colouring and/or bleaching composition. The component could bealso a carrier for dye precursors or concentrates.

In another aspect, the present invention relates to a method ofcolouring and/or dyeing hair comprising applying onto hair a haircolouring and/or bleaching composition as defined herein before. Themethod may comprise the steps of: providing a first component as definedhereinbefore; providing a second component as defined hereinbefore;mixing the first and the second components for obtaining a haircolouring and/or bleaching composition; applying the obtainedcomposition onto hair; optionally leaving the applied composition onhair from 5 min to 60 min, alternatively 10 min to 30 min; optionallyrinsing hair using a rinsing composition, alternatively rinsing hairwith water; optionally cleansing hair using a cleansing composition;optionally treating hair with a conditioning and/or treatingcomposition; and, optionally drying hair.

The kits described hereinabove are well-known in the art and thecompositions in each container can be manufactured utilizing any one ofthe standard approaches, these include a) ‘Oil-in-water’ process, b)‘Phase Inversion’ process and c) ‘One-pot’ process. For example, whenusing “oil-in-water” process, surfactants of the present invention areadded to approximately 50% of total water amount of the composition at90° C., homogenized for 15 to 30 min, then cooled to room temperaturethus forming gel network thickener premix; this premix is then mixedcold with remaining amounts of water, other optional components and/oroxidizing agent, thus forming the first and second component parts ofthe above described bleaching or colouring kit.

The present invention may be provided in a variety of packaging devicesand/or dispensing devices. These dispensing devices can come in the formof separate devices which may be used independently or in combinationwith one another. Typically, the hair colouring and/or bleachingcompositions are contained within separate single or multi-compartmentcontainers so that the compositions can be stored separately from oneanother before use. The compositions are then mixed together by a mixingmeans and then dispensed from the device and applied to the consumer'shair by an application means.

The most common packaging device which can be used involves storing thedeveloper component in a container such as a bottle, tube, aerosol, or asachet and separately storing the dye component in an additionalcompartment within the developer container or more preferably in aseparate container which may be identical such as a dual sachet oraerosol systems for example or different such as a bottle and tubesystem. Any combination may be used and is typically contingent on thetype of composition being stored i.e. whether or not it is a thick orthin type. The consumer or hair salon professional may mix the developercomponent and the tint component by any means, including by using amixing bowl and/or a mixing tool, by adding one component into thecontainer of the other component followed by mixing, or by performing ordisplacing a seal located between the separate compartments of thecomponents within a single container or sachet followed by mixing.

The devices described herein above can also be used in combination witha product delivery and or application tool to aid application of theproduct onto the hair, including using a nozzle attached to one of thecontainers, using a separate applicator device such as a comb or brush,using a comb attached to or instead of the dispensing nozzle whereby theproduct is dispensed through hollow tines and dispensing apertureslocated in the comb tines. The application devices may also includedevices which assist in achieving particular effects such ashighlighting such as highlighting combs, brushes and tools, foils andhighlighting caps. Highlighting devices comprising a hinged device intowhich an amount of composition is placed and then used to apply thecomposition to pre-determined/selected hair strands may also be used.Additional device technology can be used to assist in the penetration ofthe product into the hair. Examples of such technology include heatingdevices, ultraviolet light devices and ultrasound devices.

The hair colouring and/or bleaching composition, and the correspondingfirst and second components, may be manufactured by conventionalprocesses known in the art for manufacturing oxidative hair colouringand/or bleaching products, and ad-mixing the ingredients of eachcomponent composition in suitable vessels, followed by packaging inappropriate individual containers.

EXAMPLES

Hair colouring and/or bleaching compositions—Ammonia smelldetection—Detection upon application of the hair colouring and/orbleaching composition onto hair fibers.

First Set of Examples

The following developer and tint compositions have been prepared.

Developer D0 Cetearyl alcohol* 3.4 Steareth-20** 1.5 Ceteareth-25** 0.8Paraffin oil 15 Etidronic acid, 85% 0.01 Phosphoric acid, 85% 0.1Salicylic acid 0.1 Disodium phosphate 0.08 Hydrogen peroxide, 50% 18.0Water Qsp Tint T1 T2 T3 T4 T5 T6 T7 T8 Cetearyl alcohol* 10.0 10.0 10.010.0 10.0 10.0 10.0 10.0 Steareth-20** 10.0 8.0 6.0 5.0 4.0 3.0 2.0 1.0Ammonium 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 hydroxide, 25% Water Qsp QspQsp Qsp Qsp Qsp Qsp Qsp Ratio of fatty alcohol 10:10 10:8 10:6 10:5 10:410:3 10:2 10:1 to non-ionic surfactant *fatty alcohols according to theinvention **non-ionic surfactants according to the invention

8 hair colouring and/or bleaching compositions were obtained by mixingthe developer and a tint component in a ratio 1:1 as shown below.

The ammonia smell released by the composition, upon application ontohair fibers was quantified according to a scale ranging from 0 to 5,wherein 0=no ammonia odour detectable; 1=very weak ammonia odour; 2=weakammonia odour; 3=moderate ammonia odour; 4=strong ammonia odour; 5=verystrong ammonia odour.

Results:

Mixed composition T1 + D0 T2 + D0 T3 + D0 T4 + D0 T5 + D0 T6 + D0 T7 +D0 T8 + D0 Ammonia odour 5 5 3 3 1 0 0 0 assessment score

It can be seen from the results that a weak or no ammonia odour wasdetected for a ratio of fatty alcohol to non-ionic surfactant in thetint component (second component) above 10:4.

Second Set of Examples

The following developer and tint compositions have been prepared todemonstrate the effect of the presence of a fatty compound andadditional surfactants in the composition.

Developer D1 D2 Cetearyl alcohol 3.0 3.0 Steareth-20 2.0 2.0Ceteareth-25 4.0 4.0 Paraffin oil — 20 Salicylic acid 0.2 0.2 Phosphoricacid 85% 1.5 1.5 Hydrogen Peroxide, 12.0 12.0 50% Water Qsp Qsp Tint T1T2 T3 T4 T5 T6 T7 Crodafos CES ¹*** 16.0 — — — 16 — 8.0 Crodafos C2SA ²— — — — — 6.0 — Cetearyl alcohol* — 12.74 10 12.74 — 10 8.0Steareth-20** 1.5 1.5 1.5 1.5 1.5 1.5 1.5 Sodium hydroxide 0.72 — — —0.72 0.66 0.36 Ammonia 8.0 8.0 8.0 8.0 8.0 8.0 8.0 Sodium laureth-2sulfate 0.0 0.0 0.0 1.4 1.4 1.4 0.0 Water Qsp Qsp Qsp Qsp Qsp Qsp QspRatio of fatty alcohols to 10:1.2 10:1.2 10:1.5 10:1.2 10:1.2 10:1.510:1.1 non-ionic surfactants Raw materials: ¹ Crodafos CES comprises 72%to 77% cetearyl alcohol, and 23% to 28% dicety phosphate/ceteth-10phosphate; ² Crodafos CS2A comprises 100% ceteareth-2 phosphate * fattyalcohol according to the present invention ** non-ionic surfactantaccording to the present invention *** contains fatty alcohols accordingto the present invention

28 hair colouring and/or bleaching compositions were obtained by mixinga developer and a tint component in a ratio 1:1 as shown below. Each ofthe tint components were mixed with:

-   -   Developer component D1 (respectively mix F1 to F7);    -   Developer component D1, then addition of 1% sodium laureth-2        sulfate aka SLS (respectively mix F8 to F14)    -   Developer component D1, then addition of 1% soytrimonium        chloride aka STC (respectively mix F15 to F21)    -   Developer component D2 (respectively mix F22 to F28)

Mix T1 T2 T3 T4 T5 T6 T7 D1 F1 F2 F3 F4 F5 F6 F7 D1 + 1% SLS F8 F9 F10F11 F12 F13 F14 D1 + 1% STC F15 F16 F17 F18 F19 F20 F21 D2 F22 F23 F24F25 F26 F27 F28

The ammonia smell released by the composition, upon application ontohair fibers was quantified according to a scale ranging from 0 to 5,wherein 0=no ammonia odour detectable; 1=very weak ammonia odour; 2=weakammonia odour; 3=moderate ammonia odour; 4=strong ammonia odour; 5=verystrong ammonia odour.

Results:

Mix Odour F1  3 F2  4 F3  4 F4  4 F5  4 F6  4 F7  3 F8  4 F9  3 F10 3F11 4 F12 ≥4 F13 ≥4 F14 4 F15 4 F16 4 F17 4 F18 4 F19 ≥4 F20 ≥4 F21 4F22 2 F23 ≤2 F24 ≤2 F25 3 F26 4 F27 4 F28 ≤2

It can be seen that the addition of a fatty compound according to thepresent invention seems to be essential to achieve the ammonia odourbenefit (F22, F23, F24 and F28). It can also be seen that the additionof ionic surfactants or cationic surfactants may reduce the ammoniaodour benefit, and is therefore not preferred according to the presentinvention.

The dimensions and values disclosed herein are not to be understood asbeing strictly limited to the exact numerical values recited. Instead,unless otherwise specified, each such dimension is intended to mean boththe recited value and a functionally equivalent range surrounding thatvalue. For example, a concentration disclosed as“1%” is intended to mean“about 1%”.

Every document cited herein, including any cross referenced or relatedpatent or application and any patent application or patent to which thisapplication claims priority or benefit thereof, is hereby incorporatedherein by reference in its entirety unless expressly excluded orotherwise limited. The citation of any document is not an admission thatit is prior art with respect to any invention disclosed or claimedherein or that it alone, or in any combination with any other referenceor references, teaches, suggests or discloses any such invention.Further, to the extent that any meaning or definition of a term in thisdocument conflicts with any meaning or definition of the same term in adocument incorporated by reference, the meaning or definition assignedto that term in this document shall govern.

While particular embodiments of the present invention have beenillustrated and described, it would be obvious to those skilled in theart that various other changes and modifications can be made withoutdeparting from the spirit and scope of the invention. It is thereforeintended to cover in the appended claims all such changes andmodifications that are within the scope of this invention.

What is claimed is:
 1. A hair colouring and/or bleaching compositioncomprising a first aqueous component and a second aqueous component,mixed prior to application onto hair, wherein: the first aqueouscomponent comprises, in a cosmetically acceptable carrier one or moreoxidizing agents; and the second aqueous component comprises, in acosmetically acceptable carrier: one or more alkalizing agents selectedfrom the group consisting of ammonia, its salts and mixtures thereof;and one or more fatty alcohols; one or more non-ionic surfactants otherthan fatty alcohols; one or more radical scavengers; one or morephosphate esters present in a range of from 0% to less than 0.1% bytotal weight of the composition, and one or more chelants in a range offrom about 0.1 wt % to about 5 wt % by total weight of the composition,the one or more chelants selected from the group consisting ofdiethylenetriamine-N,N′,N″-polyacids, diethylenetriaminepentaacetic acid(DTPA), diethylenetriaminepenta(methylene phosphonic acid) (DTPMP),diamine-N,N′-dipolyacid, monoamine monoamide-N,N′-dipolyacid,ethylenediaminedisuccinic acid (EDDS), their salts thereof, theirderivatives thereof, and mixtures thereof, wherein the ratio between thetotal amount of fatty alcohols and the total amount of nonionicsurfactants other than fatty alcohols comprised in the second aqueouscomponent ranges from 10:0.1 to 10:3 and the one or more fatty alcoholsand one or more nonionic surfactants are at least in part a gel networkin the second aqueous component; and wherein at least one of thecomponents comprises one or more fatty compounds selected from the groupconsisting of a mineral oil, hydrocarbon oil, and mixtures thereof;wherein the one or more fatty compounds are present in a total amountranging from 0.5% to 20% by total weight of the composition; the one ormore fatty alcohol(s) are present in a total amount ranging from 0.5% to20% by total weight of the composition; the one or more non-ionicsurfactant(s) other than fatty alcohols are present in a total amountranging from 0.2% to 5% by total weight of the composition; and whereinthe composition is free of a cationic surfactant and an anionicsurfactant.
 2. The composition according to claim 1, wherein the ratiobetween the total amount of fatty alcohols and the total amount ofnon-ionic surfactants other than fatty alcohols comprised in the secondaqueous component ranges from 10:0.5 to 10:3.
 3. The compositionaccording to claim 1, wherein the ratio between the total amount offatty alcohols and the total amount of non-ionic surfactants other thanfatty alcohols comprised in the second aqueous component ranges from10:1 to 10:3.
 4. The composition according to claim 1, wherein the oneor more fatty compounds are present in a total amount ranging from 3% to20% by total weight of the composition.
 5. The composition according toclaim 1, wherein the first and the second aqueous components are mixedin a ratio ranging from 5:1 to 1:5.
 6. The composition according toclaim 1, wherein the one or more phosphate ester compounds are selectedfrom the group consisting of alkyl phosphate esters, alkoxylated alkylphosphate esters, and mixtures thereof.
 7. The composition according toclaim 1, wherein the composition comprise a total amount of surfactantsother than fatty alcohols and non-ionic surfactants of less than 1% bytotal weight of the composition.
 8. The composition according to claim1, wherein the composition comprises a total amount of polymers selectedfrom cationic polymers of less than 1% by total weight of thecomposition.
 9. The composition according to claim 1, wherein the one ormore fatty alcohols are selected from the group consisting of linear C14to C30 fatty alcohols, branched C14 to C30 fatty alcohols and mixturesthereof.
 10. The composition according to claim 1, wherein the one ormore non-ionic surfactants other than fatty acids are selected frompolyoxyethylene C8 to C30 alkyl ethers.
 11. The composition according toclaim 1, wherein the composition comprises a total amount of one or morefatty alcohols and one or more non-ionic surfactants other than fattyalcohols ranging from 1% to 30% by total weight of the composition. 12.A kit for colouring and/or bleaching hair comprising a first and asecond unit, comprising respectively the first and the second aqueouscomponents, as defined in claim
 1. 13. The kit according to claim 12,wherein the kit further comprises a third component selected from aconditioning composition, a pre-treatment composition, or a colourrefresher composition.
 14. The composition of claim 1, wherein the oneor more radical scavengers are in a range of from about 0.1 wt % toabout 10 wt % of the composition.
 15. A method for colouring and/orbleaching hair comprising applying onto hair a composition as defined inclaim
 1. 16. A method for colouring and/or bleaching hair comprising thesteps of: a. providing a first aqueous component as defined in claim 1;b. providing a second aqueous component as defined in claim 1; c. mixingthe first and the second aqueous components to obtain a hair colouringand/or bleaching composition; d. applying the obtained composition ontohair.